Navigation Links
'Nanoscoops' could spark new generation of electric automobile batteries
Date:1/4/2011

ise driving and other operations. Koratkar said the invention of nanoscoops may enable these two separate systems to be combined into a single, more efficient battery unit.

Results of the study were detailed in the paper "Functionally Strain-Graded Nanoscoops for High Power Li-Ion Battery Anodes," published Thursday by the journal Nano Letters. See the full paper at: http://pubs.acs.org/doi/abs/10.1021/nl102981d

The anode structure of a Li-ion battery physically grows and shrinks as the battery charges or discharges. When charging, the addition of Li ions increases the volume of the anode, while discharging has the opposite effect. These volume changes result in a buildup of stress in the anode. Too great a stress that builds up too quickly, as in the case of a battery charging or discharging at high speeds, can cause the battery to fail prematurely. This is why most batteries in today's portable electronic devices like cell phones and laptops charge very slowly the slow charge rate is intentional and designed to protect the battery from stress-induced damage.

The Rensselaer team's nanoscoop, however, was engineered to withstand this buildup of stress. Made from a carbon (C) nanorod base topped with a thin layer of nanoscale aluminum (Al) and a "scoop" of nanoscale silicon (Si), the structures are flexible and able to quickly accept and discharge Li ions at extremely fast rates without sustaining significant damage. The segmented structure of the nanoscoop allows the strain to be gradually transferred from the C base to the Al layer, and finally to the Si scoop. This natural strain gradation provides for a less abrupt transition in stress across the material interfaces, leading to improved structural integrity of the electrode.

The nanoscale size of the scoop is also vital since nanostructures are less prone to cracking than bulk materials, according to Koratkar.
'/>"/>

Contact: Michael Mullaney
mullam@rpi.edu
518-276-6161
Rensselaer Polytechnic Institute
Source:Eurekalert  

Page: 1 2 3

Related biology technology :

1. Gene Discovery Could Increase Value of Non-Food Crops for Industries Outside of Agriculture
2. Designer probiotics could reduce obesity
3. Study Shows Cardiovascular Deaths in Europe Could Be Prevented
4. Transparent conductive material could lead to power-generating windows
5. Pivoting hooks of graphenes chemical cousin could revolutionize work of electron microscopes
6. Advance could change modern electronics
7. Water could hold answer to graphene nanoelectronics
8. Lastest graphene research could lead to improvements in bluetooth headsets and other devices
9. Semiconductor could turn heat into computing power
10. Novel electronic biosensing technology could facilitate new era of personalized medicine
11. Magical BEANs: New nano-sized particles could provide mega-sized data storage
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
'Nanoscoops' could spark new generation of electric automobile batteries
(Date:10/22/2014)... HONG KONG , Oct. 22, 2014 /PRNewswire/ ... announced today that rare disease expert John C. ... research. Dr. McKew brings more than two decades of ... the National Institutes of Health, Wyeth Research and Genetics ... will lead aTyr,s efforts to expand and translate its ...
(Date:10/20/2014)... Texas (PRWEB) October 20, 2014 ... announced that a team from Iowa State University won ... design contest. Using a Convey HC-2ex, the team’s solution ... 14 times faster than the second place finisher. , ... world embarked upon the month long challenge, using a ...
(Date:10/20/2014)... 20, 2014 , A major ... and the delivery of care has revealed changing trends ... inequalities in the provision of healthcare services across the ... by United European Gastroenterology (UEG), have been announced today ... awareness of the burden of GI disorders across ...
(Date:10/20/2014)... 2014 OncLive® is ... Center at Thomas Jefferson University has joined its ... Strategic Alliance Partnership program, the Sidney Kimmel Cancer ... raise awareness of the Center’s cutting-edge research programs, ... Clinicians and other health care professionals from the ...
Breaking Biology Technology:aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 2aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 3Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 2Team from Iowa State Wins 2014 MemoCODE Design Contest Using Convey HC-2ex 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 2Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 3Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 4Major Survey Reveals Changing Trends and Inequalities in Healthcare Provision for Gastrointestinal Disorders Across Europe 5Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3
... Hospital and Medical Center and the University of Arizona College ... the Valley Fever Center based at the hospital.  The center ... than 30 years of experience in treating and researching Valley ... Tucson in 1996. The center plans to see ...
... MSC Care Management, the industry,s leading provider of ... workers, compensation claimants nationwide, announced today that it ... also focused on the workers, compensation industry, to ... management solution, known as S3. Integrated Healthcare Services, ...
... WEST LAFAYETTE, Ind., Oct. 4, 2011 Kylin ... today that it has received a notice of ... (USPTO) for its second U.S. patent application. This ... technology, as well as expanded areas on Kylin,s ...
Cached Biology Technology:St. Joseph's Hospital, University of Arizona Create Valley Fever Center in Phoenix 2MSC to Offer Surgical Implant Cost Management Solution through Acquisition of Integrated Healthcare Services 2Kylin Therapeutics Receives Notice of Allowance for Second U.S. Patent Covering Delivery of Therapeutic RNA and pRNAi Technology 2
(Date:10/15/2014)... an unexpected extent. The outbreak does not follow the ... a new disease dynamic in regions, where it has ... National Academy of Sciences Leopoldina, acatech – the German ... the German Academies of Sciences and Humanities have presented ... the statement the academies call for the following consequences ...
(Date:10/15/2014)... Oct. 15, 2014   Neurotechnology , a ... the availability of the VeriLook Surveillance 3.0 ... provides real-time biometric face identification using live video ... cameras. The new version not only identifies faces ... from objects while they are moving through the ...
(Date:10/14/2014)... fly genome for the first time, revealing robust immune ... thrives in pathogen-rich dung piles and garbage heaps. , ... Genome Biology , will increase understanding of house fly ... to resist insecticides, which could lead to novel control ... transmit more than 100 human and animal diseases, including ...
Breaking Biology News(10 mins):Academies call for consequences from the Ebola virus epidemic 2Academies call for consequences from the Ebola virus epidemic 3Academies call for consequences from the Ebola virus epidemic 4Academies call for consequences from the Ebola virus epidemic 5VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 2VeriLook Surveillance 3.0 SDK Identifies Faces and Moving Objects, Differentiates Pedestrians from Other Moving Objects in Video Surveillance Systems 3House fly genome reveals expanded immune system 2
... linked to many of the same health problems as tobacco ... wheeze, according to a new study by researchers at Yale ... used illicit drug in the United States, and abuse of ... in today's Archives of Internal Medicine. First author Jeanette M. ...
... of the same health problems as tobacco smoke, such as ... a new study by researchers at Yale School of Medicine. ... in the United States, and abuse of the drug is ... of Internal Medicine. First author Jeanette M. Tetrault, M.D., and ...
... has long been recognized that birds possess the ability to ... how this is done has not yet been clarified. ... homing pigeons in a new study (1) by Gerta Fleissner ... promising insight into this complex topic. The article will ...
Cached Biology News:Migration played key role in HIV spread in South Africa 2Long-term marijuana smoking leads to respiratory complaints 2Homing pigeons get their bearings from their beaks 2
ANTI PIG LDH H4...
... in refrigerators, freezers, or liquid nitrogen. Conveniently sized to ... color coding to project, user, lab, etc. Holes in ... air circulation. Supplied with 10 x 10 (11.6 mm ... dimensions: 13 x 13 x 5.1 cm H (5 ...
Recombinant Rhesus Monkey IFN-Alpha...
RABBIT ANTI AMPHOTERIN...
Biology Products: